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7076 Aluminum vs. EN 1.4848 Stainless Steel

7076 aluminum belongs to the aluminum alloys classification, while EN 1.4848 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 7076 aluminum and the bottom bar is EN 1.4848 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
150
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 6.2
9.0
Fatigue Strength, MPa 170
130
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 27
78
Tensile Strength: Ultimate (UTS), MPa 530
510
Tensile Strength: Yield (Proof), MPa 460
250

Thermal Properties

Latent Heat of Fusion, J/g 380
320
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 630
1390
Melting Onset (Solidus), °C 460
1340
Specific Heat Capacity, J/kg-K 860
490
Thermal Conductivity, W/m-K 140
15
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.0
4.4
Embodied Energy, MJ/kg 150
63
Embodied Water, L/kg 1110
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
38
Resilience: Unit (Modulus of Resilience), kJ/m3 1510
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 49
18
Strength to Weight: Bending, points 48
18
Thermal Diffusivity, mm2/s 54
3.9
Thermal Shock Resistance, points 23
11

Alloy Composition

Aluminum (Al), % 86.9 to 91.2
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
24 to 27
Copper (Cu), % 0.3 to 1.0
0
Iron (Fe), % 0 to 0.6
45.4 to 55.7
Magnesium (Mg), % 1.2 to 2.0
0
Manganese (Mn), % 0.3 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
19 to 22
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.4
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 7.0 to 8.0
0
Residuals, % 0 to 0.15
0